Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F41—WEAPONS
  • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
  • F41H7/00—Armoured or armed vehicles
  • F41H7/02—Land vehicles with enclosing armour, e.g. tanks
  • F41H7/04—Armour construction
  • F41H7/046—Shock resilient mounted seats for armoured or fighting vehicles

Definitions

• the invention relates to a deformation element for protecting a device in a vehicle by converting energy into deformation energy in a Blascheninectiv, with an upper mounting portion for attachment to the device and a lower mounting portion for attachment to the vehicle, wherein the two mounting portions on an upper leg and a lower leg are connected together.
• the invention further relates to a device, in particular footrest, for a driving zeug, a vehicle with a device and a method for producing such a deformation element.
• the invention can be used in particular in military vehicles. In particular, it serves to protect inmates and facilities
• DE 40 11 963 A1 describes a construction in which a protective plate is supported by conical, spiral-shaped springs relative to the floor of the vehicle and is additionally connected to the ground by cables.
• a generic deformation element is known from DE 10 2008 053 152 A1, which is preferably made of spring steel.
• the deformation element is U-shaped and connected via spacers to the vehicle and the device to be protected. This deformation element already provides large deformation paths.
• the legs of the Us move towards each other.
• the semicircular bending section of the US buckles out from the fastening areas arranged at the ends of the legs.
• the bending section is wearing.
• Spacers are provided for attachment to the vehicle and device. These provide space for the bulging bend portion during deformation so that the energy does not enter the device through contact coupling from the vehicle to the bending bending portion, as shown in FIGS.
• the invention is therefore based on the invention, a protection against
• the V-shaped arrangement of the legs ensures that the deformation element is deformed in such a way that it does not apply or bulge during the deformation and thus allows the largest possible deformation path in relation to the installation space.
• the deformation element can be arranged between the vehicle and the device such that the legs form a horizontal V.
• the deformation element is designed such that the upper leg and the lower leg are in particular side by side juxtaposition and / or movable past each other in a deformation of the deformation element. Due to this configuration is in Ratio of the height of the deformation element realized as large as possible deformation.
• the deformation element contracts substantially flat during deformation.
• the deformation element may be formed in one piece. Integral deformation elements are relatively simple and inexpensive to produce and also have relatively homogeneous mechanical properties.
• the deformation element has a connecting portion arranged between the attachment regions, of which one flank the upper leg extends upwards and the lower leg extends downwards.
• the connecting portion is to be understood as the area of the deformation element via which the two legs are connected to one another.
• the legs preferably extend together on one flank of the connecting region.
• the flank is a lateral section, in particular a lateral edge of the connecting section.
• the connecting portion is formed substantially parallel to the upper and / or lower mounting portion.
• the deformation element is allowed to have the largest possible deformation path in relation to its overall height.
• the deformation path is almost as large as the distance from the vehicle to the device in the mounting region of the deformation element.
• the deformation path can be at least 80% of the distance of Vehicle and device amount, preferably at least 90%, more preferably at least 95%.
• the connecting portion is designed to be movable relative to the attachment areas.
• the attachment areas move towards each other.
• the connection area moves in a horizontal plane away from the attachment areas. It shifts in the direction in which the legs extend from the fastening area.
• the deformation element is designed in such a way that, in the case of a deformation of the deformation element, the connecting section moves away from a straight line connecting the two fastening regions. As a result of this configuration, the device moves in the horizontal direction as little as possible relative to the vehicle during the deformation of the deformation element.
• the deformation element may be formed such that the connecting portion moves away from a straight line passing through the centers of the upper and lower legs.
• the upper and lower legs are deformable under the influence of a force directed essentially perpendicular to the vehicle in different deformation sectors offset from each other transversely to the direction of the force. In this way, the legs can not interfere with each other when deforming. It is achieved as large as possible deformation path.
• DE 10 2008 053 152 in particular on the design of the deformation sectors, is referred to A1, which is hereby incorporated in full in the present application.
• each leg has at least two bending edges on which the leg is bent in different directions.
• the bending edges are formed substantially transversely to the longest side of the leg.
• at least one, preferably the bending edges extends parallel to a surface plane, in particular a sheet plane, of the blank of the deformation element.
• a leg can be divided and extend on both sides of the other leg.
• the two parts of the split leg are connected together at their end.
• the two parts of the split leg may end up unconnected with each other.
• the deformation element can be designed to be plane-symmetrical with respect to a plane of symmetry plane.
• the plane of symmetry is spanned by a vector which extends along the center line in the longitudinal direction of the undivided leg and a vector which is orthogonal to the surface of the undivided leg.
• the upper and lower legs may preferably be the same length. However, the upper leg and the lower leg can also be designed to have different lengths. In this case, it is of particular advantage if the Angle between the mounting portion arranged on the shorter leg and the shorter leg is smaller than the angle between the mounting portion arranged on the longer leg and the longer leg. Additionally or alternatively, the bisecting line of the two legs may be inclined in the direction of the attachment region of the upper or lower leg, particularly preferably in the direction of the attachment region of the shorter leg. Furthermore, the deformation element may be made of spring steel. The energy absorption capacity of deformation elements made of spring steel is particularly large. The material thickness of the spring steel is preferably at least 1 mm to 8 mm, preferably 2 mm to 5 mm, particularly preferably substantially 3 mm.
• the deformation element in the deformation may have a progressive force characteristic.
• the course of the force characteristic can be adjusted for example by changing the geometry of the legs.
• the deformation element can be designed for spacer-free mounting on the vehicle or the device, preferably for mounting without spacers to the vehicle and the device.
• a device of the aforementioned type which has at least one deformation element of the type described above.
• the deformation element can be attached to the device without a spacer.
• a deformation element is arranged in each corner of the device. A particularly favorable introduction of force into the deformation elements results when the openings of the "Vs" of two opposing deformation elements point towards one another or away from one another.
• the deformation element (s) are configured in such a way that they are torsionally deformable upon the action of a force directed essentially perpendicular to the vehicle floor.
• the deformation element can be used for a multiplicity of devices of vehicles, for example for footrests, seats, tables, stowage spaces or intermediate floors. Particularly effective is a footrest for a vehicle with a footrest plate and one or more deformation elements of the type already described has been found.
• a vehicle which has at least one deformation element of the type described above or at least one device of the type described above. There are the same advantages as in the previously described deformation element and the device described above.
• the deformation element is free of spacers via the lower leg with the vehicle floor and / or over the upper leg without a spacer with the device, in particular the footrest, connected.
• the connection via connecting means in particular screws.
• the deformation element can be connected via the lower leg and a spacer to the vehicle floor and / or over the upper leg and a spacer to the device, in particular the footrest.
• the above object is also achieved by a method of the type mentioned at the outset in that the two legs are arranged essentially V-shaped relative to one another, in particular bent.
• a blank for the deformation element in particular a spring steel sheet, a
• the deformation element according to the invention can be produced in a particularly simple and cost-effective manner and without material weaknesses.
• the ends of the punched-out "U" converge toward one another
• the ends converge toward one another.
• the legs are movable side by side and, secondly, that the most favorable possible flow of force is achieved in the component.
• FIG. 2 shows the footrest of FIG. 1 with four deformation elements
• FIGS. 2 and 3 shows a deformation element according to FIGS. 2 and 3 in a perspective view
• FIG. 6 is a plan view of a deformation element according to FIG. 4, FIG.
• FIG. 7 is a side view of a deformation element according to FIG. 4, 8 shows a front view of a deformation element according to FIG. 4, FIG. 9 shows a view from below onto a deformation element according to FIG.
• 10a is a schematic view of a footrest with deformation elements according to the prior art in undeformed state
• FIG. 10b is a schematic view of a footrest according to FIG. 10a in the deformed state
• 11a is a schematic view of a footrest according to the invention in undeformed state
• FIG. 11a shows a footrest according to FIG. 11a in the deformed state
• FIG. 12a shows a schematic view of a footrest with deformation elements according to the prior art in undeformed state
• FIG. 12b shows a schematic view of a foot rest according to FIG. 12a in the deformed state
• FIG. 13a shows a schematic view of a foot rest according to the invention in an undeformed state
• 13b a footrest according to FIG. 13a in the deformed state
• FIG. 12b shows a schematic view of a foot rest according to FIG. 12a in the deformed state
• FIG. 13a shows a schematic view of a foot rest according to the invention in an undeformed state
• 13b a footrest according to FIG. 13a in the deformed state
• Fig. 1 shows the interior of an armored military vehicle 14 not shown in detail with a vehicle floor 15.
• a seat 16 is arranged, on which a person can sit.
• the footrest 10 includes a predominantlyauflagenplatte 11 and four deformation elements 1.
• the energy of the mine acts in the form of a force acting substantially perpendicular to the vehicle floor 15 force F on the vehicle 14.
• the deformation elements 1 protect the person from the energy of the mine by decoupling the device 10 from the vehicle 14 on the one hand, and by converting the energy essentially into deformation energy on the other hand.
• the deformation element 1 is made of high-strength steel, in particular spring steel.
• the footrest 10 comprises a substantially rectangular footrest plate 11. This represents the device 10 to be protected.
• the footrest plate 11 is formed as a footboard, in particular Aluminiumriffelblech. In the exemplary embodiment, the footrest plate 11 is limited by a peripheral edge 12.
• the footrest 10 is connected to the vehicle floor 15 via four deformation elements 1.
• a deformation element 1 is arranged in each corner.
• the deformation elements 1 arranged in the corners are aligned in such a way that the openings of the Vs are pairwise aligned with each other. Alternatively, the openings of the Vs may also be aligned in pairs away from each other.
• the deformation elements 1 are not deformed. In an overload, such as a mine action, the yield point of the material of the deformation element 1 is exceeded and it comes to plastic deformation.
• the deformation elements 1 are of similar construction and are connected in each case via fastening means 9 and upper or lower spacers 13, to the device 10, here the footrest 10, or to the vehicle floor 15. By the spacers 13, a maximum stroke of the deformation elements 1 is provided. However, the deformation elements 1 can also be connected without a spacer to the device 10 and / or the vehicle 14.
• FIG. 4 shows a deformation element 1 in an undeformed state.
• the deformation element 1 has an upper fastening area 2, an upper leg 4, a connecting section 6, a lower leg 5 and a lower fastening area 3.
• the deformation element 1 is formed in one piece.
• the upper attachment region 2 is connected to the upper leg 4 via a bending edge 7, and the lower attachment region 3 is connected to the lower leg 5 via a bending edge 7.
• the two legs 4, 5 extend in a V-shape from one flank of the connecting section 6 to the attachment areas 2, 3.
• Bending edges 7 are likewise located at the transition between the flank of the connecting section 6 and the legs 4, 5.
• the bending edges 7 run parallel to one another a surface of the blank of the deformation element.
• the connecting portion 6 is formed parallel to the attachment areas 2, 3. According to another embodiment, however, the connecting portion 6 may also be formed perpendicular to the attachment areas 2, 3.
• the attachment regions 2, 3 may have one or more recesses 8, the bores 8, for receiving fastening means 9.
• the deformation element 1 is connected to the device 10 and the vehicle 14.
• spacers 13 can be provided between the attachment areas 2, 3 and the device 10 or the vehicle 14.
• the deformation elements 1 can also be connected without a spacer to the vehicle 14 or the device 10.
• FIG. 5 the deformation element 1 from FIG. 4 is shown in the deformed state.
• the legs 4, 5 can be assigned to one another without contact during the deformation.
• the deformation element 1 is folded flat.
• the legs 4, 5 are here beyond even further deformed. They can also move past each other. For this purpose, however, it is necessary to attach the legs 4, 5 with spacers 13 to the device 10 or the vehicle 14.
• one limb 5 is formed in a divided manner and extends on both sides of the other limb 4. 5 is in the embodiment longer than the undivided leg 4 is formed.
• the ends of the divided leg 5 are connected to one another again.
• a fork-shaped pedestal can be provided as a spacer element 13.
• the ends of the split leg 5 may also be formed unconnected.
• the undivided leg 4 dives in or between the parts of the divided leg 5. 6 is to increase that the bending edges 7 are formed at the leg ends substantially transverse to the leg longitudinal direction.
• the deformation element 1 is shown in a side view. In the view can be clearly seen that each leg 4, 5 of the deformation element 1 has two bending edges 7. The direction of the bending of the bending edges 7 has in each leg 4, 5 in different directions; once in a mathematically positive and once in a mathematically negative direction.
• the upper leg 4 is shorter than the lower leg 5.
• the angle A between the longer leg 5 and the attachment area 3 arranged thereon is greater than the angle B between the shorter leg 4 and the attachment areas 2 arranged thereon.
• the legs 4, 5 can also be of the same length.
• the bisector W between the legs 4, 5 located. The bisector W can run parallel to the attachment areas 2, 3 or the connecting portion 6. However, it can also, in particular in the case of legs 4, 5 of different lengths, as shown in FIG. 7, point in the direction of the attachment region 2 of a limb 4, 5, in particular of the shorter limb 4.
• the connecting section 6 is designed to be movable relative to the fastening areas 2, 3.
• the connecting portion 6 moves in a deformation of the deformation element 1 of a straight line GB away, which connects the two attachment portion 2, 3 together.
• the connecting section can also move away from a straight line G s which runs through the center points of the legs 4, 5.
• a deformation element 1 is shown in a front view.
• three deformation sectors I, II, III are shown by dashed lines. Acts on the deformation element 1 a substantially perpendicular to the vehicle floor 1 5 directed force F, the legs 4, 5 deformed in transverse to the direction of force against each other staggered deformation sectors I, II, III. This has the effect that the legs 4, 5 lie next to one another during the deformation and / or move past each other without contact.
• the deformation element 1 is also formed plane symmetrical to a plane E, which is spanned by a vector along the center line of the undivided leg 4 and a vector normal to the surface of the undivided leg 4. This plane is shown in Figs. 8 and 9 as a dash-dot line. Due to the plane symmetrical design of the deformation element 1 a uniform deformation of the deformation element 1 is achieved as possible. In a force acting essentially perpendicular to the vehicle floor 15, the deformation element is even deformed essentially torsion-free.
• the deformation element 1 deforms over the stroke along a defined force-displacement curve. This can be adjusted by the leg geometry, for example, by widening legs 4, 5. Thus, for example, progressive force-displacement curves can be set.
• the deformation element 1 of the exemplary embodiment is produced by punching out of a blank a U-shaped region 20 or punching out a blank with a U-shaped region 20 made of a high-strength steel, in particular spring steel.
• the ends of the Us run in a pointed way.
• the blank is reshaped so that the interior of the Us 21 is bent to one side and the exterior of the US 22 to the other side.
• the attachment areas 2, 3 are formed.
• the recesses are likewise introduced into the attachment regions 2, 3 by punching or by drilling, preferably before forming.
• deformation elements 17 are shown with deformation elements 17 according to the prior art.
• These deformation elements 17 likewise have two legs 18, 19, but are U-shaped. These deformation elements are connected via spacers or sockets to the vehicle or the device. These bases are necessary to provide the necessary space for deformation len.
• the attachment portions on the legs deform more than the U-shaped portion. They thus bulge against the attachment areas.
• the deformation elements 17 can therefore come in the deformation due to a mine explosion with the monläläge 10 and with the vehicle floor 15 into contact and thus couple the energy of the explosion over the U-shaped area in the device.
• the deformation elements according to the invention lie essentially flat together, as shown in FIGS. 11b and 13b, so that no force or energy coupling into the footrests 10 can occur.
• the deformation elements according to the invention As a result of this flat assembly, the deformation elements according to the invention, as is clearly recognizable in the comparison of FIGS. 10b and 1b, have a greater deformation path than the deformation elements 17 according to the prior art for the same overall height.

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• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Passenger Equipment (AREA)
• Body Structure For Vehicles (AREA)
• Vehicle Step Arrangements And Article Storage (AREA)

Priority Applications (2)

Applications Claiming Priority (2)

Publications (1)

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Cited By (2)

Citations (5)

Family Cites Families (5)

• 2012
  • 2012-09-27 DE DE201210109190 patent/DE102012109190B4/de active Active
• 2013
  • 2013-09-26 EP EP13783247.3A patent/EP2901099B1/de active Active
  • 2013-09-26 ES ES13783247T patent/ES2712680T3/es active Active
  • 2013-09-26 WO PCT/DE2013/100343 patent/WO2014048420A1/de active Application Filing

Patent Citations (5)

Non-Patent Citations (1)

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